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Photocatalytic Oxidative Bromination of Electron-Rich Arenes and Heteroarenes by Anthraquinone

Petzold, Daniel ; König, Burkhard



Abstract

The estimated excited oxidation potential of sodium anthraquinone-2-sulfonate (SAS) increases from 1.8 V to about 2.3 V vs SCE by protonation with Brønsted acids. This increased photooxidation power of protonated anthraquinone was used for the regio-selective oxidative bromination of electron rich (hetero)arenes and drugs in good yield. The mild reaction conditions are compatible with many ...

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